Here is the reply I received from WPA:
Hi Jon
Firstly, it is a foul if no ball is driven to a rail after contact with the object ball.
Secondly, you are right as no player bothers to call safety because it is of no benefit to him. We are aware of the this being unnecessary and will be attending to it in the next rules review.
Just to let you know how this got into the rule in the first place: 10Ball was aimed at avoiding most fluke shots and therefore all shots were to be called. The word ‘safety’ was brought about so that a player had to call safety if he intended to snooker his opponent. If a player did not call safety and ended up snookering his opponent, his opponent would have the choice to ask him to play again. Anyway, something went wrong when going to print and it was left out.
Sorry for the inconvenience.
Regards
Ishaun
So the question becomes will they eliminate the safety rule verbage or allow the incoming player the option if a safety is not declared? Or will they just change the rules to give the incoming player the option on ANY miss whether a ball falls or not? I'm not sure I like this last option because it takes the two-way out of the game.